CN114362284B - Power supply control device and system - Google Patents
Power supply control device and system Download PDFInfo
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- CN114362284B CN114362284B CN202111463142.8A CN202111463142A CN114362284B CN 114362284 B CN114362284 B CN 114362284B CN 202111463142 A CN202111463142 A CN 202111463142A CN 114362284 B CN114362284 B CN 114362284B
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- 239000003990 capacitor Substances 0.000 description 11
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The embodiment of the disclosure discloses a device and a system for power supply control, wherein the device comprises: the device comprises an operation module, a direct current motor and a driving module; the operation module comprises a rotating part connected with a rotating shaft of the direct current motor; the direct current motor is used for triggering the direct current motor to transmit electric energy to the driving module when the rotating part rotates; the driving module comprises a driving circuit and a reversing switch; the driving circuit is connected with the reversing switch; the reversing switch is provided with a first state for keeping the driving circuit to output a first control signal and a second state for converting the first control signal into a second control signal; the first control signal is used for controlling the target circuit to be connected with a power supply, and the second control signal is used for controlling the target circuit to be disconnected with the power supply. Therefore, on the premise of not increasing extra power consumption, the type of the control signal is converted, the on-off operation between the power supply and the target circuit is completed, the safety is high, and the consumed electric resources are few.
Description
Technical Field
The present disclosure relates to the field of circuit control, and in particular, to a device and system for power supply control.
Background
Currently, in instruments related to circuit control, for example, instruments working under drilling electromagnetic wave CT and geophysical prospecting holes, connectors are provided between a power supply and a functional circuit, and the power supply of the functional circuit is controlled by live plug-in.
In the related art, a manual live plugging mode is often adopted to realize power supply control. In practical application, the power supply control device in the related technology has low safety and potential safety hazard.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a device and a system for power supply control.
According to a first aspect of embodiments of the present disclosure, there is provided an apparatus for power supply control, the apparatus comprising: the device comprises an operation module, a direct current motor and a driving module; wherein,,
the operation module comprises a rotating part connected with a rotating shaft of the direct current motor; the direct current motor is used for triggering the direct current motor to transmit electric energy to the driving module when the rotating part rotates;
the driving module comprises a driving circuit and a reversing switch; the driving circuit is connected with the reversing switch; the reversing switch has a first state for keeping the driving circuit to output a first control signal and a second state for converting the first control signal into a second control signal; the first control signal is used for controlling the target circuit to be communicated with a power supply, and the second control signal is used for controlling the target circuit to be disconnected with the power supply.
In one embodiment, the rotating part includes: a handle and a ratio gear assembly; wherein,,
one end of the transformation ratio gear assembly is connected with the handle, and the other end of the transformation ratio gear assembly is connected with the rotating shaft of the direct current motor; the transformation ratio gear assembly is used for adjusting the rotation speed ratio between the rotating shaft of the direct current motor and the handle.
In one embodiment, an amplifying circuit is provided between the driving circuit and the reversing switch; the amplifying circuit is used for amplifying the current of the first control signal.
In one embodiment, the driving circuit is a pulse circuit;
the pulse circuit outputs the first control signal under the drive of the electric energy, and the first control signal is used for controlling the target circuit to be communicated with the power supply; wherein the first control signal is a forward pulse.
In one embodiment, the pulse circuit is connected to the reversing switch; the reversing switch is used for converting the forward pulse output by the pulse circuit into reverse pulse; the reverse pulse is used to control the disconnection of the target circuit from the power supply.
In one embodiment, the apparatus further comprises: a relay, comprising: the relay coil is connected with the reversing switch, and the relay coil is driven by a first control signal to control the relay switch to be closed; the coil of the relay is driven by a second control signal to control the relay switch to be turned off; the on and off states of the relay switch are used to indicate the on-off state between the target circuit and the power supply.
In one embodiment, the reversing switch is a double pole double throw paddle type switch for changing the direction of current in the relay coil.
According to a second aspect of embodiments of the present disclosure, there is provided a system for power supply control, the system comprising:
the battery is used for supplying power to the target circuit;
the power supply control device as described in the above embodiment;
and the relay is used for realizing the on-off between the battery and the target circuit under the control of a control signal output by the power supply control device.
In one embodiment, the system further comprises a winch and a winch pulley, the power supply control device and the winch pulley are installed in the winch, a cable for transmitting control signals is wound on the winch pulley, and the winch is connected with the relay through the cable for transmitting control signals.
In one embodiment, the battery and the relay are mounted within an underground protective case that protects the battery and the relay.
In the embodiment of the disclosure, the direct current motor is triggered to transmit electric energy to the driving module through the rotating part of the operating module, and the driving module starts a first state and a second state for controlling the on-off of the target circuit and the power supply according to the received electric energy. Here, the first control signal output by the driving circuit may be used to control the target circuit to be connected to the power supply, and the reversing switch may convert the first control signal into the second control signal and may be used to control the target circuit to be disconnected from the power supply.
Therefore, compared with the connector arranged between the power supply and the functional circuit, the power supply of the power supply to the functional circuit is controlled through live plug, and the technical scheme of the disclosure can trigger the generation of the first control signal through the rotation of the rotating part and the arrangement of a small number of circuits; the first control signal is converted into a second control signal by reversing the reversing switch. Therefore, the type of control signals is converted under the premise that the additional power consumption is not increased through the rotation of the rotating part, the on-off operation between the power supply and the target circuit is completed, the safety is high, the consumed electric resources are few, the risk caused by misoperation is avoided, and the instrument disassembly frequency is reduced.
Drawings
Fig. 1 is a schematic diagram of a device for power supply control according to an embodiment of the disclosure;
fig. 2 is a schematic diagram of an apparatus for power supply control according to an embodiment of the disclosure;
fig. 3 is a schematic diagram of an apparatus for power supply control according to an embodiment of the disclosure;
fig. 4 is a schematic diagram of an apparatus for power supply control according to an embodiment of the disclosure;
fig. 5 is a schematic diagram of an apparatus for power supply control according to an embodiment of the disclosure;
FIG. 6 is a schematic diagram of a pulse circuit according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a pulse effect of a pulse circuit according to an embodiment of the disclosure;
fig. 8 is a schematic diagram of an apparatus for power supply control according to an embodiment of the disclosure;
fig. 9 is a schematic diagram of an apparatus for power supply control according to an embodiment of the disclosure;
FIG. 10 is a schematic diagram of a relay switch control provided by an embodiment of the present disclosure;
FIG. 11 is a schematic diagram of an apparatus for power control according to an embodiment of the disclosure;
FIG. 12 is a schematic diagram of a system for power control provided by an embodiment of the present disclosure;
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings and examples.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
For a better understanding of the embodiments of the present disclosure, the following describes an instrument in the related art by some exemplary embodiments:
in one embodiment, a switch for the power supply and target circuitry is provided in an instrument operating under the geophysical prospecting hole, the switch being manually turned on before the instrument enters the subsurface. A waterproof protective cover is also provided, for example, under the switch, to prevent contact failure of the switch.
In another embodiment, the on-off between the power supply and the target circuit is controlled through the upper computer, the singlechip, the driving circuit and the relay; or the on-off between the power supply and the target circuit is controlled through the upper computer, the embedded digital circuit, the driving circuit and the relay.
As shown in fig. 1, an embodiment of the present application provides a device for controlling power supply, where the device includes:
an operation module 10, a direct current motor 20 and a driving module 30; wherein,,
the operation module 10 includes a rotation part 101 connected to a rotation shaft of the dc motor 20; for triggering the direct current motor 20 to deliver electric energy to the driving module 30 when the rotating part rotates;
the driving module 30 comprises a driving circuit 301 and a reversing switch 302; the driving circuit 301 is connected with the reversing switch 302; the change-over switch 302 has a first state that controls the driving circuit 301 to output a first control signal and a second state that controls the driving circuit 301 to output a second control signal; the first control signal is used for controlling the target circuit to be communicated with a power supply, and the second control signal is used for controlling the target circuit to be disconnected with the power supply.
In some embodiments, the rotating part 101 includes: a handle and a ratio gear assembly. One end of the transformation ratio gear assembly is connected with the handle, and the other end of the transformation ratio gear assembly is connected with the rotating shaft of the direct current motor; the transformation ratio gear assembly is used for adjusting the rotation speed ratio between the rotating shaft of the direct current motor and the handle. Illustratively, the handle is provided with an insulating material. Thus, the rotating shaft of the direct current motor is driven to rotate at a preset rotating speed through the rotation of the handle, so that the threshold voltage in a preset range is generated. Here, only need the number of turns of control handle, realize the electric energy output under the prerequisite that does not increase extra consumption, practiced thrift the electric resource, improved the security of power supply control's device.
For example, the preset range of the threshold voltage may be determined according to the parameter requirements of the driving circuit 301. If the value of the parameter requirement is larger than a first value, the threshold voltage is larger than a first preset value; if the parameter requires a value less than the first value, the threshold voltage is less than a second predetermined value. And determining the first preset value and the second preset value according to a mapping relation table between the parameter requirements and the preset values.
The parameters indicated by the parameter requirements may be, for example, the load voltage, the load current and the load power of the driving circuit 301.
Illustratively, as shown in FIG. 2, the DC motor to which the ratio gear assembly is connected employs a 2400 rpm miniature DC motor rated for output DC 12V. For example, the load of the dc motor may be not less than 250 ohms, thereby ensuring that the voltage output by the dc motor is stable. Illustratively, the gear assembly is provided with at least three gears (gears 1, 2, 3 shown in fig. 2) having different diameters, the ratio of the diameters between the respective gears is not limited, and only the rotation speed ratio between the last handle and the rotation shaft of the dc motor is determined to be 1:40. at this time, the handle is rotated for only one turn within 1 second, so that the rotation speed (2400 rpm) of the rotation shaft of the direct current motor can be required, and the direct current motor 20 can transmit the DC12V voltage to the driving module 30.
It will be appreciated that in different embodiments, the rotational speed requirements of the rotational shafts of different dc motors are not uniform. The number of the ratio gears and the diameter ratio between the ratio gears can be set by a person skilled in the art according to the requirements of the person, so that the rotation speed ratio between the handle and the rotating shaft meets the requirements of users in practical application scenes.
In some embodiments, the driving circuit 301 outputs the current for a predetermined period of time after receiving the rated voltage output from the dc motor 20. If the power supply terminal of the driving circuit does not receive the power after the predetermined period of time, the driving circuit 301 stops outputting the current. Wherein the predetermined time period is determined based on the values of the timing resistor and the timing capacitor set in the driving circuit 301. Thus, the rotating part 101 is rotated only before the driving circuit is required to output the control signal, and the driving circuit outputs current only in a preset time period, so that manpower resources are saved, and the power consumption of the device is reduced.
Illustratively, the timing resistor is in series with the timing capacitor, and the value of the predetermined time period is the product of the timing resistor and the value of the timing capacitor.
In some embodiments, the reversing switch 302 has a first state that maintains the drive circuit outputting a first control signal and a second state that transitions the first control signal to a second control signal; the first control signal is used for controlling the target circuit to be communicated with a power supply, and the second control signal is used for controlling the target circuit to be disconnected with the power supply. Illustratively, the reversing switch 302 is a double pole double throw boat switch. As shown in fig. 11, the first state indicates that the double pole double throw boat switch is on the first control terminal (two contacts shown in fig. 11 as black solid) and the second state indicates that the double pole double throw boat switch is on the second control terminal (two contacts shown in fig. 11 as white solid). In this way, the operation of disconnecting the control target circuit from the power supply can be completed only by the reversing switch 302 without additionally providing a driving circuit for outputting the second control signal, thereby reducing the number of circuits, improving the safety of power supply control and saving electric resources.
In some embodiments, the reversing switch 302 may be manually operated; alternatively, an electronic and communication module may be provided by which the reversing switch 302 is remotely controlled; alternatively, a timer may be provided, and the reversing switch 302 automatically completes the switching operation after a certain time.
Illustratively, the driving circuit 301 is a pulse circuit, which is triggered by the electric energy output by the dc motor, and outputs a forward pulse. The reversing switch 302 has a first state that holds the forward pulse and a second state that converts the forward pulse to a reverse pulse.
For example, the second state of the reversing switch 302 is used to change the voltage positive and negative of the indication of the positive pulse, thereby converting the positive pulse to a reverse pulse; alternatively, the second state of the reversing switch 302 is used to change the direction of movement of electrons in the indicated current of the forward pulse, thereby converting the forward pulse to a reverse pulse.
The forward pulse may be used to control the target circuit to be connected to the power source and the reverse pulse may be used to control the target circuit to be disconnected from the power source. A contactor or relay is also illustratively provided between the power source and the target circuit, and the reverse pulse is used to control the switch of the contactor or relay to turn off, thereby controlling the power source to be disconnected from the target circuit. The contactor or the switch of the relay is used for controlling the on-off between the power supply and the target circuit. Here, the forward pulse may be indirectly excited by the rotation of the rotating portion 101, and at the same time, the operation of disconnecting the control target electricity from the power supply may be completed only by the changeover switch 302 without additionally providing a pulse circuit that outputs the reverse pulse.
In some embodiments, the means for power control may comprise: and the relay or the contactor is used for controlling the on-off between the target circuit and the power supply.
In some embodiments, the means for power control comprises: a relay, comprising: the relay switch and the relay coil are connected with the reversing switch 302, the current state of the relay coil is determined according to the state of the reversing switch 302, the relay coil is used for controlling the relay switch, and the relay switch is used for controlling the on-off between the target circuit and the power supply. Here, the changeover switch 302 changes the on-off state of the relay switch by changing the category of the control signal received by the relay, thereby controlling the on-off between the target circuit and the power supply.
For example, the relay may select a magnetic latching relay. When the current value on the relay coil exceeds the magnitude of the attraction current, the relay switch generates attraction action; the pull-in current indicates a minimum current that the magnetic latching relay is capable of generating a pull-in action. And if the relay switch completes the actuation action, the target circuit is communicated with the power supply. At this time, although the driving circuit no longer supplies a periodic current to the magnetic latching relay through the changeover switch 302 after a predetermined period, the magnetic latching relay can maintain the on state of the relay switch by the magnetism of the permanent magnet, and the communication state between the target circuit and the power supply is maintained. If the drive circuit again supplies current to the latching relay and the direction of current flow on the relay coil is changed by the reversing switch 302, the relay switch generates a repulsive action, so that the target circuit is disconnected from the power supply.
In the embodiment of the disclosure, the direct current motor is triggered to transmit electric energy to the driving module through the rotating part of the operating module, and the driving module starts a first state and a second state for controlling the on-off of the target circuit and the power supply according to the received electric energy. Here, since the first control signal output from the driving circuit may be used to control the target circuit to be connected to the power source, the change-over switch 302 may convert the first control signal into the second control signal for controlling the target circuit to be disconnected from the power source. Therefore, compared with a connector arranged between a power supply and a functional circuit, the power supply of the power supply to the functional circuit is controlled through live plug, and the technical scheme of the disclosure can trigger the generation of a first control signal through the rotation of the rotating part 101 and the arrangement of a small number of circuits; the first control signal is converted into a second control signal by reversing the reversing switch 302. Therefore, through the rotation of the rotation part 101, the type of the control signal is converted on the premise of not increasing additional power consumption, the on-off operation between the power supply and the target circuit is completed, the safety is high, the consumed electric resources are few, the risk caused by misoperation is avoided, and the instrument disassembly frequency is reduced.
As shown in fig. 3, the embodiment of the present application provides a device for power supply control, where the rotating portion 101 includes: a handle 102 and a ratio gear assembly 103; one end of the transformation ratio gear assembly 103 is connected with the handle 102, and the other end of the transformation ratio gear assembly 103 is connected with a rotating shaft of the direct current motor 20; the gear assembly 103 is used to adjust the rotation speed ratio between the shaft of the dc motor 20 and the handle 102.
In some embodiments, the ratio gear assembly 103 comprises at least two ratio gears.
In some embodiments, a power device may be provided between the handle 102 and the ratio gear assembly 103, the handle 102 being configured to trigger the power device to generate power to engage the ratio gear assembly. Illustratively, the power plant is a cylinder or, alternatively, the power plant is a motor.
In this way, the handle 102 can excite the power device to start to act, and drive the rotating shaft of the direct current motor 20 to rotate at a preset rotating speed, so as to generate rated voltage. Here, only the state of the handle is required to be manually controlled, electric energy output is realized on the premise of not increasing extra power consumption, electric resources are saved, and the safety of the power supply control device is improved.
In some embodiments, the number of ratio gears and the diameter ratio between the respective ratio gears may be set according to a rotation speed condition corresponding to the rotation shaft of the dc motor 20. Illustratively, in the application scene of 1 rotation/second of the handle, the rotation speed ratio between the handle and the rotation shaft can be adjusted through different diameter ratios, so that the rotation speeds of the rotation shafts of different direct current machines 20 meet the rotation speed conditions corresponding to the rotation shafts. Thus, the rotation of the handle 102 drives the rotation shaft of the dc motor to rotate at a predetermined rotation speed, thereby generating a rated voltage. Here, only the number of turns of the control handle 102 is required, and the electric energy output is realized without increasing additional power consumption, so that electric resources are saved, and the safety of the device for power supply control is improved.
In some embodiments, the rotational speed of the handle 102 may be 2 revolutions per second, or 0.5 revolutions per second, which is not limiting in the disclosed embodiments. Illustratively, the rotation speed of the handle 102 required by the user is 2 rpm, the rotation speed condition corresponding to the rotation shaft of the dc motor 20 is 2400 rpm, and the diameter ratio between the respective ratio gears is set such that the rotation speed ratio between the handle 102 and the rotation shaft of the dc motor 20 is: 1:80.
illustratively, the rotation speed of the handle 102 required by the user is 2 rpm, the rotation speed condition corresponding to the rotation shaft of the dc motor 20 is 1200 rpm, and the diameter ratio between the various ratio gears is set such that the rotation speed ratio between the handle 102 and the rotation shaft of the dc motor 20 is: 1:40.
as shown in fig. 4, an embodiment of the present disclosure provides an apparatus for power supply control. An amplifying circuit 303 is provided between the driving circuit 301 and the reversing switch 302; the amplifying circuit 303 is configured to amplify the first control signal.
In one embodiment, the amplifying circuit 303 may include an amplifying device, and the amplifying device may amplify the first control signal output from the driving circuit. In view of the arrangement of the amplifying circuit, in the power supply control device according to the embodiment of the present disclosure, the power input to the driving circuit 301 by the dc motor 20 is small, and the power consumption of the driving circuit 301 is small.
In one embodiment, the amplifying circuit 303 may include at least one fet, an input terminal of the at least one fet is connected to an output terminal of the driving circuit 301, an output terminal of the at least one fet is connected to the reversing switch 302, and the at least one fet is capable of amplifying a voltage of the first control signal output by the driving circuit.
In another embodiment, the amplifying circuit 303 may comprise at least one operational amplifier.
Illustratively, in one embodiment, the driving circuit may include at least one transistor, an emitter of the at least one transistor being connected to the reversing switch, and a base of the at least one transistor being connected to the output of the driving circuit 301. The current output by the emitter of the triode is far greater than the current input to the base of the triode, so that the triode amplifies the current of the first control signal output by the driving circuit. In view of the arrangement of the amplifying circuit, in the power supply control device according to the embodiment of the present disclosure, the power input to the driving circuit 301 by the dc motor 20 is small, and the power consumption of the driving circuit 301 is small.
The number of the at least one transistor may be set to two, for example. For ease of understanding, the two transistors are referred to as a first transistor and a second transistor, respectively. The base electrode of the first triode is connected with the output end of the driving circuit 301, the emitter electrode of the first triode is connected with the base electrode of the second triode, and the emitter electrode of the second triode is connected with the reversing switch 302; the connection point of the collector of the first triode and the collector of the second triode is connected with the input end of the driving circuit 302.
In one embodiment, the current amplifying circuit may include a first current limiting resistor, a second current limiting resistor, and a third voltage dividing resistor. The first current limiting resistor and the second current limiting resistor are connected with the triode in series, and the third voltage dividing resistor is connected with the triode in parallel. The first current limiting resistor, the second current limiting resistor and the third voltage dividing resistor are used for reducing the load power of the triode.
As shown in fig. 5, an embodiment of the present disclosure provides an apparatus for power supply control. The driving circuit 301 is a pulse circuit 304. The pulse circuit 304 outputs the first control signal under the driving of the electric energy, wherein the first control signal is used for controlling the target circuit to be communicated with the power supply; wherein the first control signal is a forward pulse.
In some embodiments, the pulse signal indicated by the forward pulse output by the pulse circuit may be a square wave, a rectangular wave, a spike wave, or a sawtooth wave. Illustratively, in one embodiment, the pulse signal indicated by the forward pulse output by the pulse circuit is a square wave.
For example, in one embodiment, the pulse circuit 304 may output current for a predetermined period of time after receiving the rated voltage output by the dc motor 20. If the power supply terminal of the pulse circuit does not receive power after a predetermined period of time, the pulse circuit 304 may stop outputting current. Wherein the predetermined time period is determined based on the values of the timing resistor and the timing capacitor set in the pulse circuit 304. In this way, the rotating part 101 is rotated only before the pulse circuit 304 is required to output the forward pulse, and the pulse circuit 304 outputs current only in a predetermined time period, thereby saving human resources and reducing power consumption of devices.
In one embodiment, the forward pulse may energize a relay or contactor to produce a switch closing motion, thereby controlling communication of the target circuit with the power source.
In one embodiment, as shown in fig. 6, the pulse circuit may include 555 timers, resistors R1 to R6, and capacitors C1 to C3. The 2 pin, the 3 pin and the 5 pin of the 555 timer are respectively connected with the capacitor C2, the resistor R2 and the capacitor C3, the 1 pin of the 555 timer is grounded, and the 8 pin is connected with the output end of the driving circuit 301. And the 4 pin of the 555 timer is connected with a resistor R4, and the other end of the resistor R4 is connected with a connection point between the 6 pin and the 7 pin of the 555 timer.
When the voltage at the contact of the 2 pin of the 555 timer drops to 1/3 of the input power, the 3 pin of the 555 timer outputs a single square wave pulse. The output of the square wave pulse is often determined by a time constant composed of a resistor R4 and capacitors C1, C2 and C3, and the time constant is determined by the following formula:
T＝1.1×R4×C1×C2×C3；
the time constant T is the output duration of the square wave pulse.
In one embodiment, the value of capacitor C1 is 1uF, the value of capacitor C2 is 10uF, the value of capacitor C3 is 10uF, and the value of resistor R4 is 45KΩ. At this time, the time constant t=1.1×r4×c1×c2×c3. I.e. the output duration of the square wave pulse is 50ms.
In one embodiment, the pulse circuit may include a current amplifying device Q1, the resistors R1, R2 are current-limited in series with the current amplifying device Q1, and the resistor R3 is voltage-divided in parallel with the current amplifying device Q1. Here, the load power of the current amplifying device is reduced by means of current limiting and voltage dividing.
Illustratively, the positive-going pulse output by the pulse circuit shown in fig. 6 has the actual effect shown in fig. 7.
As shown in fig. 8, an embodiment of the present disclosure provides an apparatus for power supply control. Wherein the pulse circuit 304 is connected with the reversing switch 302; the reversing switch 302 is configured to convert the forward pulse output by the pulse circuit 304 into a reverse pulse; the reverse pulse is used to control the disconnection of the target circuit from the power supply.
In one embodiment, the pulse circuit 304 is triggered by the power output from the dc motor 20 to output a forward pulse. The reversing switch 302 has a first state that holds the forward pulse and a second state that converts the forward pulse to a reverse pulse. The forward pulse may be used to control the target circuit to be connected to the power source and the reverse pulse may be used to control the target circuit to be disconnected from the power source. Here, the direct current motor 20 is excited by the rotation of the rotating part 101 to output electric energy, triggering the generation of the forward pulse; meanwhile, a pulse circuit for outputting reverse pulse is not required to be additionally arranged, and the operation of disconnecting the control target circuit from the power supply can be completed only through the reversing switch, so that the number of circuits is reduced, the safety of power supply control is improved, and electric resources are saved.
In one embodiment, the reverse pulse energizes a relay or contactor to produce a switch off action, thereby controlling the disconnection of the target circuit from the power source.
As shown in fig. 9, an embodiment of the present disclosure provides an apparatus for power supply control. The relay 40 comprises a relay switch 402 and a relay coil 401, wherein the relay coil 401 is connected with the reversing switch 302, and the relay coil 401 is driven by a first control signal to control the relay switch 402 to be closed; the relay coil 401 is driven by a second control signal to control the relay switch 402 to be turned off; the on and off states of the relay switch 402 are used to indicate the on-off state between the target circuit and the power supply.
In some embodiments, the relay coil 401 is driven by a first control signal to generate a first magnetic field that can control the relay switch 402 to close without limitation on the type of relay 40.
In one embodiment, the reversing switch 301 converts the first control signal to a second control signal, which is a null signal. The null signal is used for indicating that the current received by the input end of the relay is null; or the null signal is used for indicating that the value of the current received by the input end of the relay is smaller than the preset current value of the first magnetic field generated by the relay. Since the relay lacks an input current, the current on the relay coil 401 gradually vanishes and the first magnetic field vanishes as the current on the relay coil 401 vanishes. As such, the relay switch 402 cannot remain in a closed state, thereby transitioning to an off state.
For example, the reversing switch may be connected to a driving circuit and a second circuit including an infinite resistor, respectively. The reversing switch can be communicated with the driving circuit in a first state and connected with the second circuit in a second state. At this time, the null signal is used to instruct the reversing switch to be connected to the second circuit in the second state. Since the resistance of the second circuit is greater than the preset range, the value of the current on the relay coil 401 is less than the preset value of the current capable of generating the first magnetic field, which disappears, and the relay switch 402 is switched to the off state. Here, the control of the on-off state between the target circuit and the power supply is completed by switching the first control signal by the changeover switch. Therefore, even if the driving circuit still transmits current to the relay under certain application scenes, the mode that the reversing switch converts the first control signal into the second control signal is adopted, the relay switch is prevented from being turned off on time, and accordingly on-off between the target circuit and the power supply can be controlled efficiently.
In another embodiment, the relay 40 is a magnetic latching relay. Illustratively, after the magnetically held relay coil 401 is driven by the first control signal to control the relay switch 402 to be closed, the magnetically held relay can maintain the magnetism driven by the first control signal when the positive and negative voltages are no longer applied across the relay coil 401. The magnetism causes the relay switch 402 to remain closed. Thus, through the magnetic holding characteristic of the magnetic holding relay, the driving circuit can maintain the communication state between the target circuit and the power supply without continuously outputting the first control signal to the magnetic holding relay, and electric resources are saved.
In one embodiment, the first control signal received by the magnetic latching relay is a forward pulse and the second control signal received by the magnetic latching relay is a reverse pulse. The forward pulse provides a forward voltage to the magnetic latching relay and the reverse pulse provides a reverse voltage to the magnetic latching relay. The magnetic direction of the magnetic latching relay is controlled by the positive and negative of the voltage received by the magnetic latching relay, and the magnetic direction controls the on-off state between the target circuit and the power supply.
In one embodiment, as shown in fig. 10, the relay is a single coil magnetically held relay, with relay coil 401 having a resistance of about 200 ohms. When a positive DC12V pulse is applied to the relay coil 401, the 1 pin of the relay coil 401 is connected with a positive voltage, and the 2 pin is a negative voltage. At this time, the relay 3 pins and 4 pins will be in a short circuit condition. When a reverse pulse is applied to the relay coil 401, the 1 pin of the relay coil 401 is connected with a negative voltage, and the 2 pin is a positive voltage. At this time, the relay 3 and 4 pins will be in an open state. The 1 pin and the 2 pin of the relay coil 401 are used for indicating two ends of the relay coil 401, the short circuit state of the 3 pin and the 4 pin of the relay indicates that the relay switch is closed, and the open circuit state of the 3 pin and the 4 pin of the relay indicates that the relay switch is opened.
As shown in fig. 11, an embodiment of the present disclosure provides an apparatus for power supply control. The reversing switch 301 is a double pole double throw paddle switch, and the double pole double throw paddle switch is used for changing the direction of the current in the relay coil 401.
In one embodiment, the relay coil 1 and 2 pins are connected to the double pole double throw boat switch in the manner shown in fig. 9. The 1-pin and the 2-pin of the relay coil 401 are used to indicate the two ends of the relay coil 401.
In one embodiment, the drive circuit 301 outputs a first control signal to the relay coil 401. For example, if the double pole double throw boat switch is turned on at the two solid black contacts of the first control terminal as shown in fig. 11), the 1 pin of the relay coil 401 is connected to the output terminal of the driving circuit 301, and the 2 pin is grounded, and the current in the relay coil 401 is in the forward direction. The forward current in the relay 402 generates a first magnetic field that causes the relay switch 402 to produce a counter-attractive action. That is, the relay switch 402 is closed. Wherein the first control signal is a forward current in the relay coil 401.
In another embodiment, the driving circuit 301 outputs a first control signal to the relay coil 401. When the boat switch is turned on at the second control terminal (two hollow white contacts as shown in fig. 11), the 1 pin of the relay coil 401 is grounded, and the 2 pin is connected to the output terminal of the driving circuit 301, and the current in the relay coil 401 is reversed. The opposing currents in the relay 402 create a second magnetic field that causes the relay switch 402 to produce a like-pole, repulsive action. That is, the relay switch 402 is turned off. Here, the first control signal received by the relay coil 401 is converted into a second control signal, which is a current reversed in the relay coil 401.
Therefore, the operation of disconnecting the control target electricity from the power supply can be completed only through the double-pole double-throw ship-shaped switch without additionally arranging a driving circuit for outputting a second control signal, the number of circuits is reduced, the safety of power supply control is improved, and the electric resource is saved.
As shown in fig. 12, an embodiment of the present disclosure provides a system for power control.
The system comprises: a battery 7 and a target circuit 9, the battery 7 being used to power the target circuit 9;
the operation module 1, the driving module 3 and the dc motor 2 in the power supply control device according to any one of the above;
a relay 8 according to any preceding claim, configured to switch between the battery 7 and the target circuit 9 under control of a control signal output by the power supply control device.
In one embodiment, the system further comprises a winch 5 and a winch pulley 4, wherein the operation module 1, the driving module 3, the direct current motor 2 and the winch pulley 4 in the power supply control device are arranged in the winch 5, a cable 6 for transmitting control signals is wound on the winch pulley 4, and the winch 5 is connected with the relay 8 through the cable 6 for transmitting control signals.
In one embodiment, the battery 7 and the relay 8 are mounted in an underground protective box for protecting the battery 7 and the relay 8.
In one embodiment, a ground control box 10 is arranged on the ground, the driving module 3 and the direct current motor 2 are arranged in the ground control box 10, and the direct current motor 2 is connected with the operation module 1 outside the ground control box 10.
In one embodiment, the floor control box 10 is a rectangular parallelepiped plastic box weighing approximately 150g, 5cm by 10cm by 3 cm.
In one embodiment, as shown in fig. 12, the ground control box 10 is installed at the side of the winch 5, the control signal is connected with the winch slip ring 4 through two wires, and is transmitted to the relay coil 802 below the battery 7 through the cable 6 to control the relay switch 801, so as to finally realize the power-on and power-off of the power supply 7 and the target circuit 9.
In one embodiment, the on-off state can be identified during actual operation, and the battery can be connected independently to perform the off operation before the operation is finished or the state is unknown, so that the state is ensured to be fixed.
In one embodiment, the ground control box 10 is mounted on the winch 5, and the operation module 1 may include a ratio gear and a handle, which may be made of plastic materials, and has a small volume and no additional weight.
In the technical scheme of the embodiment of the disclosure, the on-off between the power supply 7 and the target circuit can be controlled by shaking the handle for 1-2 circles, the operation is convenient, and the additional energy requirement is not increased.
It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.
In addition, the embodiments of the present disclosure may be arbitrarily combined without any collision.
The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. An apparatus for power control, comprising: the device comprises an operation module, a direct current motor and a driving module; wherein,,
the operation module comprises a rotating part connected with a rotating shaft of the direct current motor; the direct current motor is used for triggering the direct current motor to transmit electric energy to the driving module when the rotating part rotates;
the driving module comprises a driving circuit and a reversing switch; the driving circuit is connected with the reversing switch; the reversing switch has a first state for keeping the driving circuit to output a first control signal and a second state for converting the first control signal into a second control signal; the first control signal is used for controlling the target circuit to be communicated with a power supply, and the second control signal is used for controlling the target circuit to be disconnected with the power supply.
2. The apparatus of claim 1, wherein the rotating portion comprises: a handle and a ratio gear assembly; wherein,,
one end of the transformation ratio gear assembly is connected with the handle, and the other end of the transformation ratio gear assembly is connected with a rotating shaft of the direct current motor; the gear assembly is used for adjusting the rotation speed ratio between the rotating shaft of the direct current motor and the handle.
3. The apparatus of claim 1, wherein an amplifying circuit is provided between the drive circuit and the reversing switch; the amplifying circuit is used for amplifying the first control signal.
4. The apparatus of claim 1, wherein the drive circuit is a pulse circuit;
the pulse circuit outputs the first control signal under the drive of the electric energy, and the first control signal is used for controlling the target circuit to be communicated with the power supply; wherein the first control signal is a forward pulse.
5. The apparatus of claim 4, wherein the pulsing circuit is coupled to the reversing switch; the reversing switch is used for converting the forward pulse output by the pulse circuit into reverse pulse; the reverse pulse is used to control the disconnection of the target circuit from the power supply.
6. The apparatus of claim 1, wherein the apparatus further comprises: a relay, comprising: the relay coil is connected with the reversing switch, and the relay coil is driven by a first control signal to control the relay switch to be closed; the coil of the relay is driven by a second control signal to control the relay switch to be turned off; the on and off states of the relay switch are used to indicate the on-off state between the target circuit and the power supply.
7. The apparatus of claim 6, wherein the reversing switch is a double pole double throw paddle switch for changing the direction of current in the relay coil.
8. A system for power control, comprising:
the battery is used for supplying power to the target circuit;
a power supply control apparatus as claimed in any one of claims 1 to 5;
and the relay is used for realizing the on-off between the battery and the target circuit under the control of a control signal output by the power supply control device.
9. The system according to claim 8, further comprising a winch and a winch pulley, wherein the power supply control device according to any one of claims 1 to 5 and the winch pulley are installed in the winch, a cable transmitting a control signal is wound around the winch pulley, and the winch and the relay are connected by the cable.
10. The system of claim 8, wherein the battery and the relay are mounted within an underground protective box for protecting the battery and the relay.
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| CN202111463142.8A CN114362284B (en) | 2021-12-02 | 2021-12-02 | Power supply control device and system |
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| CN202111463142.8A CN114362284B (en) | 2021-12-02 | 2021-12-02 | Power supply control device and system |
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| CN114362284B true CN114362284B (en) | 2023-08-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6247575A (en) * | 1985-08-28 | 1987-03-02 | Casio Comput Co Ltd | Stopwatch device |
| CN204668979U (en) * | 2015-04-13 | 2015-09-23 | 范龙 | Portable power source |
| CN204667623U (en) * | 2015-03-23 | 2015-09-23 | 广东美的制冷设备有限公司 | Remote controller |
| CN105634104A (en) * | 2014-10-30 | 2016-06-01 | 陕西盛迈石油有限公司 | Portable outdoor charger |
| CN105958596A (en) * | 2016-06-22 | 2016-09-21 | 南通绿业中试技术研究院有限公司 | Hand-operated mobile power supply for supercapacitor |
| CN209248771U (en) * | 2018-09-10 | 2019-08-13 | 广州汉邮通信有限公司 | A kind of new energy traffic light for pedestrians to be powered using hand generator |
| JP2019193414A (en) * | 2018-04-24 | 2019-10-31 | 三菱電機株式会社 | Driving circuit, power module, and power conversion system |
-
2021
- 2021-12-02 CN CN202111463142.8A patent/CN114362284B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6247575A (en) * | 1985-08-28 | 1987-03-02 | Casio Comput Co Ltd | Stopwatch device |
| CN105634104A (en) * | 2014-10-30 | 2016-06-01 | 陕西盛迈石油有限公司 | Portable outdoor charger |
| CN204667623U (en) * | 2015-03-23 | 2015-09-23 | 广东美的制冷设备有限公司 | Remote controller |
| CN204668979U (en) * | 2015-04-13 | 2015-09-23 | 范龙 | Portable power source |
| CN105958596A (en) * | 2016-06-22 | 2016-09-21 | 南通绿业中试技术研究院有限公司 | Hand-operated mobile power supply for supercapacitor |
| JP2019193414A (en) * | 2018-04-24 | 2019-10-31 | 三菱電機株式会社 | Driving circuit, power module, and power conversion system |
| CN209248771U (en) * | 2018-09-10 | 2019-08-13 | 广州汉邮通信有限公司 | A kind of new energy traffic light for pedestrians to be powered using hand generator |
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| CN114362284A (en) | 2022-04-15 |
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